Three years ago, MacKenzie Scott was an author, wife, and mother of four who'd started an anti-bullying group and, in the 90s, helped her husband launch Amazon. She kept a low profile—but then she divorced Jeff Bezos, got a quarter of his Amazon stake and almost immediately started planning how to give it all away. “I have a disproportionate amount of money to share,” she wrote in May 2019 when she signed the Giving Pledge, promising to give away at least half her wealth to charitable causes. “I will keep at it until the safe is empty.” Scott has not only begun to make good on her word,...…Three years ago, MacKenzie Scott was an author, wife, and mother of four who'd started an anti-bullying group and, in the 90s, helped her husband launch Amazon. She kept a low profile—but then she divorced Jeff Bezos, got a quarter of his Amazon stake and almost immediately started planning how to give it all away. “I have a disproportionate amount of money to share,” she wrote in May 2019 when she signed the Giving Pledge, promising to give away at least half her wealth to charitable causes. “I will keep at it until the safe is empty.” Scott has not only begun to make good on her word,...WW…